How to ensure that the width and thickness of the waterstop are produced within the specified size?

introduction

Waterstops are mainly used in infrastructure projects, underground facilities, tunnels, sewage treatment plants, water conservancy, subways and other projects. It is used for casting concrete for expansion joints such as gates, dam bottoms, construction works, and underground buildings. Thereby ensuring the service life of the engineering building. The quality of the waterstop is related to the use of these important projects, so accurate measurement of the waterstop in production is essential. For this reason, the waterstop tape widthmeter for the waterstop has been developed. And water stop gauge.

1, water stop bandwidth, thick standard

* When the water pressure is less than 4m, the horizontal and vertical deformation does not exceed 10mm, the width of the waterstop should not be less than 200mm, and the thickness should not be less than 5mm;

* When the water pressure is 4-8m, the horizontal and vertical deformation does not exceed 30mm, the width of the CB type waterstop should not be less than 300mm, and the thickness should not be less than 6mm;

* When the water pressure is greater than 8m and the horizontal and vertical deformation exceeds 30mm, the width of the CB type waterstop should not be less than 350mm, and the thickness should not be less than 8mm;

* The water pressure is not more than 8m, and the horizontal deformation is not more than 20mm. When there is no vertical deformation, the width of the CB type waterstop should not be less than 200mm, and the thickness should not be less than 5mm. In addition, when the structural section size is greater than 500mm, the width of the CB type waterstop should not be less than 300mm. When the CB type waterstop is bent, the turning radius should not be less than 300mm.

2, water stop tape width meter

The water stop tape width measuring instrument is a high-precision width size detecting device, which can be applied to the real-time online detection of the water stop belt, and the measuring frequency reaches 500 Hz, realizing high-speed continuous detection of the water stop belt width size, and the water stop tape width measuring instrument application. The width detection of the water stop tape is made by photoelectric principle, and the multi-standard water stop tape width detection is realized by the double-barrel photoelectric probe with adjustable pitch. When the water stop tape specification is changed, the width of the probe can be adjusted to adjust the width. Measuring range, the measuring accuracy of the water stop tape width gauge can reach 0.05mm, achieving high-precision width size detection.

The water stop tape width meter is mainly composed of an optical imaging system, a photoelectric conversion device (CCD), a signal processing system, and a display alarm system. When the width dimension of the waterstop exceeds the upper and lower limits of the tolerance alarm, an alarm signal will be given in time to give an audible and visual alarm. The water stop tape width gauge is an automatic width dimension detection device that enables real-time monitoring, real-time measurement, and real-time display. Its automated inspection method reduces the workload of the staff and improves the quality and yield of the waterstop.

3, water stop thickness gauge

There are many types of waterstops, such as bridge type, mountain type, P type, R type, U type, Z type, B type, T type, H type, E type, Q type, etc., which are not all straight. For these various types of waterstops, a waterstop thickness gauge has been developed. The figure below shows some waterstop specifications, while the waterstop thickness gauge can measure the dimensions of the thickness directions δ, H1, H2, t, etc. online.

The water stop thickness gauge is designed and developed based on the principle of laser thickness measurement. The laser thickness measurement can provide high-precision measurement, and there is no environmental pollution, no radiation, and it is more suitable for modern detection needs.

In order to realize the thickness dimension detection of the waterstops of these specifications, the waterstop thickness gauge is equipped with three sets of laser probes, the distance between the probes can be adjusted, and the water stop gauge can be used for fixed point measurement, or scanning. measuring. The measuring accuracy of the water stop gauge is ≤±0.05 mm, real-time high-precision online detection, the measuring frequency is 100 Hz, and each probe is measured 100 times per second, achieving continuous uninterrupted detection for each part. The thickness of the water stop belt is accurately detected to ensure the uniformity of the thickness of the water stop belt, and the sound and light alarm prompts when the vehicle is out of tolerance.

In order to allow the staff to observe the production status more accurately and intuitively, the water stop belt thickness gauge has developed a professional software system, and draws a water stop sectional view (non-automatically generated preset graphic) on the software interface, and scans the measurement time and graphics. The position corresponds to the display size fluctuation curve, and has the function of transmitting data to other computers, and reserves the upload interface.

In order to realize long-distance data reading, it is equipped with an external large display, control cabinet display and large LCD display: product specifications, standard thickness, rib standard thickness, real-time thickness measurement, dimensional fluctuation curve of three measuring points, etc. . When scanning and measuring, the interface shape map and the thickness dimension fluctuation curve of the corresponding part are displayed. When the measured data is within the set acceptable range, the data color of the measured value and the deviation value is green; when the measured maximum thickness deviation is greater than the set allowable range, it is red.

Conclusion

The water stop tape width gauge and the water stop tape thickness gauge are used in the production site of the waterstop belt, which can detect the width dimension and thickness dimension of the waterstop belt in real time, which provides great convenience for quality inspection and improves quality. At the same time, the detection efficiency and the number of detection points are improved, and the high-precision continuous and rapid detection greatly improves the quality of the waterstop.

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